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Today's Topics:
1. Vacancy: analysis of atmospheric CO2 in Paris, France
(Roger Brugge)
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Message: 1
Date: Fri, 13 Jun 2014 14:17:17 +0000
From: "Roger Brugge" <r.brugge@reading.ac.uk>
Subject: [Met-jobs] Vacancy: analysis of atmospheric CO2 in Paris,
France
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I have the following job advertisement for a graduate student or a postdoc
on the analysis of CO2 emitted from traffic in Paris megacity.
Duration: 12 months
Starting date: Sept/october 2014
Location: LSCE (near Paris, France)
Thank you very much,
Irene Xueref-Remy
Position advertisement
Graduate student (M2 level) or postdoctoral fellow
Analysis of the spatio-temporal variability of CO2 emissions from traffic in Paris megacity
Duration: 12 months
Starting date : September/October 2014
Location : Laboratoire des Sciences du Climat et de l?Environnement (Paris region, France)
Responsible : Dr Ir?ne Xueref-Remy LSCE CEA Orme des Merisiers 91191 Gif-sur-Yvette CEDEX ? France (tel : ++33 1 69 08 98 01 / email : irene.xueref@lsce.ipsl.fr<mailto:irene.xueref@lsce.ipsl.fr>)
Projects : CarboCount-City / ASTRE
Requirements: Knowledge of atmospheric physics is required. A correct level in writing/reading English is also expected. The candidate should either have a graduate level (Master 2) or a phD.
More than 70% of global CO2 emissions come from urbanized areas, especially from megacities such as Paris which is the third megacity in Europe. Paris and its region are estimated to emit about 15% of the French CO2 emissions, while covering less than 2% of the territory. This value of 15% comes from a high resolved regional inventory, which is mainly based on calculations from benchmark emission ratios and activity proxies. However, the inventory uncertainties are poorly known, and this inventory needs also to be verified independently.
Paris CO2 emissions are mainly due to gas heating and traffic. During the combustion process of gas or oil, CO2 is co-emitted with other species such as CO, in proportion that are characteristic of each fossil fuel type. Therefore, the analysis of CO/CO2 ratios in the urban atmosphere can help to understand the relative role of the different emission sectors on the total emitted. In this work, we will focus on the characterization of the traffic emission sector. Depending on the time of the day, the day of the week, the season, the area of the city and the meteorological conditions, CO2 emissions from traffic are subject to a large spatio-temporal variability that is reported in the high resolved inventory.
In this work, we will use atmospheric CO/CO2 measurements to characterize and understand the variability of traffic-emitted CO2, and compare it to the inventory. The data will be acquired in the framework of intensive field campaigns of atmospheric CO2 and CO (two campaigns were already carried out in June 2012 and January 2013). A Cavity Ring Down Spectrometer will be loaded into a car truck to sample outside air along the roads taken by the car. Over a year and starting in July 2014, a total of 6 campaigns of 1500km/15 days each and over a year will be carried out in Paris urban, peri-urban and rural areas, always on the same path to facilitate the comparison between the campaigns and the inventory. Human support for the campaigns is already ensured.
This position seeks for a candidate that will treat, calibrate and analyze the datasets collected during the campaigns, in the aim of assessing the diurnal, day of the week and seasonal variability of traffic CO2 emissions of Paris region. He/she will also invest in gathering key parameters datasets such as traffic density, meteorological fields, ground cover that will help to understand the datasets. Ideally he/she will submit a scientific paper before the end of the position (at least he will produce a report of his/her work). The candidate will also have the opportunity to participate to the mobile field campaigns.
--
Dr Ir?ne XUEREF-REMY
Laboratoire des Sciences du Climat et de l'Environnement
B?t. 703 Pte 17B - CEA/EA Orme des Merisiers
91191 Gif-sur-Yvette CEDEX - France
Coordinatrice du projet ANR CO2-Megaparis
http://co2-megaparis.lsce.ipsl.fr
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End of Met-jobs Digest, Vol 523, Issue 8
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